# import copy
# dictionary = {'卷心菜': 'cabbage', '午餐':['lunch', 'nooning']}
# dictionary1 = dictionary
# dictionary2 = dictionary.copy()
# dictionary3 = copy.deepcopy(dictionary)
# dictionary['卷心菜'] = 'pamphrey'
# dictionary['午餐'].remove('nooning')
# print('dictionary = ', dictionary)
# print('dictionary1 = ', dictionary1)
# print('dictionary2 = ', dictionary2)
# print('dictionary3 = ', dictionary3)

dictionary = {
    '卷心菜': 'cabbage',
    '午餐': 'lunch',
    '机器人': 'robot',
    '天空': 'sky',
    '花': 'flower',
}
print('中英文字典中所有中文词组及其对应得英文单词：')
for item in dictionary.items():
    print(item)
print('中英文字典中所有中文词组：')
for chinese in dictionary.keys():
    print(chinese, end=' ')
print('\n中英文字典中所有英文单词：')
for english in dictionary.values():
    print(english, end=' ')